{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-40127",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.169Z",
        "datePublished": "2025-11-12T10:23:20.775Z",
        "dateUpdated": "2026-05-11T21:43:17.660Z"
    },
    "containers": {
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            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:43:17.660Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: ks-sa - fix division by zero in ks_sa_rng_init\n\nFix division by zero in ks_sa_rng_init caused by missing clock\npointer initialization. The clk_get_rate() call is performed on\nan uninitialized clk pointer, resulting in division by zero when\ncalculating delay values.\n\nAdd clock initialization code before using the clock.\n\n\n drivers/char/hw_random/ks-sa-rng.c | 7 +++++++\n 1 file changed, 7 insertions(+)"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/char/hw_random/ks-sa-rng.c"
                    ],
                    "versions": [
                        {
                            "version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
                            "lessThan": "692a04a1e0cde1d80a33df0078c755cf02cd7268",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
                            "lessThan": "d76b099011fa056950f63d05ebb6160991242f6a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
                            "lessThan": "eec7e0e19c1fa75dc65e25aa6a21ef24a03849af",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
                            "lessThan": "f4238064379a91e71a9c258996acac43c50c2094",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
                            "lessThan": "2b6bcce32cb5aff84588a844a4d3f6dd5353b8e2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
                            "lessThan": "55a70e1de75e5ff5f961c79a2cdc6a4468cc2bf2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6d01d8511dceb9cd40f72eb102b7d24f0b2e997b",
                            "lessThan": "612b1dfeb414dfa780a6316014ceddf9a74ff5c0",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/char/hw_random/ks-sa-rng.c"
                    ],
                    "versions": [
                        {
                            "version": "5.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.5",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.246",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.195",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.156",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.112",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.53",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.3",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.10.246"
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                                {
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                                    "versionStartIncluding": "5.5",
                                    "versionEndExcluding": "6.18"
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/692a04a1e0cde1d80a33df0078c755cf02cd7268"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d76b099011fa056950f63d05ebb6160991242f6a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/eec7e0e19c1fa75dc65e25aa6a21ef24a03849af"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f4238064379a91e71a9c258996acac43c50c2094"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2b6bcce32cb5aff84588a844a4d3f6dd5353b8e2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/55a70e1de75e5ff5f961c79a2cdc6a4468cc2bf2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/612b1dfeb414dfa780a6316014ceddf9a74ff5c0"
                }
            ],
            "title": "hwrng: ks-sa - fix division by zero in ks_sa_rng_init",
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